131020488 has 24 divisors (see below), whose sum is σ = 354847350. Its totient is φ = 43673472.

The previous prime is 131020469. The next prime is 131020493. The reversal of 131020488 is 884020131.

It can be written as a sum of positive squares in only one way, i.e., 130919364 + 101124 = 11442^2 + 318^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 909793 + ... + 909936.

Almost surely, 2^131020488 is an apocalyptic number.

131020488 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

131020488 is an abundant number, since it is smaller than the sum of its proper divisors (223826862).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131020488 is a wasteful number, since it uses less digits than its factorization.

131020488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1819741 (or 1819734 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 27.

The square root of 131020488 is about 11446.4181297033. The cubic root of 131020488 is about 507.9017831489.

The spelling of 131020488 in words is "one hundred thirty-one million, twenty thousand, four hundred eighty-eight".